| PRO 400 | PRO 300 | ||
|---|---|---|---|
| Design | Over-ear, closed back | On-ear, closed back | |
| Driver Type | Dynamic, neodymium magnet | Dynamic, neodymium magnet | |
| Driver Unit | Φ2” (50 mm) | Φ1-5/8” (40 mm) | |
| Impedance | 23 ohms @ 1kHz | 53 ohms @ 1kHz | |
| Maximum Power | 1,000 mW | 300 mW | |
| Sound Pressure Level | 106 dB ±3 dB (1 kHz, 1 mW) | 107 dB ±3 dB (1 kHz, 1 mW) | |
| Frequency Response | 20 Hz – 20 kHz | 20 Hz – 20 kHz | |
| Weight (without Cable) | 10.2 oz (289 g) | - | |
| Ports | 1/8” (3.5 mm) on left earcup | - | |
| Cable Length | CABLE A: 4 ft (1.2 m) detachable, tangle-resistant flat cable with remote/mic optimized for Apple devices; CABLE B: 10 ft (3 m) detachable, tangle-resistant flat cable | 4 ft (1.2 m) attached, tangle-resistant flat cable with remote/mic optimized for Apple devices | |
| Connectors | CABLE A: 1/8” (3.5 mm) male-to-male mini stereo with L-type on one side; CABLE B: 1/8” (3.5 mm) male-to-male mini stereo | Gold-plated 1/8” (3.5 mm) L-type mini stereo | |
| Included | Semi-rigid carrying case; detachable, tangle-resistant flat cable (4 ft/1.2 m) with in-line remote/mic optimized for Apple devices; 10 ft (3 m) detachable, tangle-resistant flat cable; gold-plated 1/4” adapter; cleaning cloth | Soft carrying case; gold-plated 1/4” adapter; cleaning cloth | |
| Weight (with Cable) | - | 7 oz (200 g) with attached cable | |
